where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

1886 views
Technical Discussions
mahboobeh
mahboobeh
09:35 Aug-19-2005
determining mechanical properties of steel using ultrasonic

Dear friends
I want to determine the mechanical properties of steel. But I do not know which kind of wave with what frequency is suitable for this purpose? And what other parameters do I need for this test?
And I need some full text articles in this case.
If you answer me I would be very grateful .
Regards
Mahboobeh



    
 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
07:56 Aug-22-2005
Re: determining mechanical properties of steel using ultrasonic
The attached link from Panametrics-NDT describes the a procedure for determining elastic modulus in steel using longitudinal and shear waves. The optimum transducer frequency will depend on the thickness of the samples that you wish to test.


----------- Start Original Message -----------
: Dear friends
: I want to determine the mechanical properties of steel. But I do not know which kind of wave with what frequency is suitable for this purpose? And what other parameters do I need for this test?
: And I need some full text articles in this case.
: If you answer me I would be very grateful .
: Regards
: Mahboobeh
------------ End Original Message ------------




    
 
 
Uli Mletzko
R & D, Retired
Germany, Joined Nov 1998, 89

Uli Mletzko

R & D, Retired
Germany,
Joined Nov 1998
89
09:36 Aug-24-2005
Re: determining mechanical properties of steel using ultrasonic
----------- Start Original Message -----------
: The attached link from Panametrics-NDT describes the a procedure for determining elastic modulus in steel using longitudinal and shear waves. The optimum transducer frequency will depend on the thickness of the samples that you wish to test.
:
: : Dear friends
: : I want to determine the mechanical properties of steel. But I do not know which kind of wave with what frequency is suitable for this purpose? And what other parameters do I need for this test?
: : And I need some full text articles in this case.
: : If you answer me I would be very grateful .
: : Regards
: : Mahboobeh
------------ End Original Message ------------

Panametrics is proposing parallel-surface specimens and the use of two different straight beam probes (one for longitudinal and one for shear waves).

Instead, you can use one angle beam probe for longitudinal waves, which inherently also has a steeper shear wave. Then you have to use specimens of half cylindrical shape, preferably with two different radii (similar to the SULZER variation of the ISO control specimen). This method was published in the early seventies by Ulrich Betz (at that time with University of Applied Sciences Darmstadt, former with MPA Stuttgart). As far as I remember, the paper could be found in the Krautkraemer journal 'Das Echo'.

Regards
Uli Mletzko
NDT group, MPA,
University of Stuttgart (Germany)


    
 
 
John Brunk
Engineering, NDT Level III
Self employed, part-time, USA, Joined Oct 1999, 158

John Brunk

Engineering, NDT Level III
Self employed, part-time,
USA,
Joined Oct 1999
158
06:18 Aug-25-2005
Re: determining mechanical properties of steel using ultrasonic
----------- Start Original Message -----------
: : The attached link from Panametrics-NDT describes the a procedure for determining elastic modulus in steel using longitudinal and shear waves. The optimum transducer frequency will depend on the thickness of the samples that you wish to test.
: :
: : : Dear friends
: : : I want to determine the mechanical properties of steel. But I do not know which kind of wave with what frequency is suitable for this purpose? And what other parameters do I need for this test?
: : : And I need some full text articles in this case.
: : : If you answer me I would be very grateful .
: : : Regards
: : : Mahboobeh
: Panametrics is proposing parallel-surface specimens and the use of two different straight beam probes (one for longitudinal and one for shear waves).
: Instead, you can use one angle beam probe for longitudinal waves, which inherently also has a steeper shear wave. Then you have to use specimens of half cylindrical shape, preferably with two different radii (similar to the SULZER variation of the ISO control specimen). This method was published in the early seventies by Ulrich Betz (at that time with University of Applied Sciences Darmstadt, former with MPA Stuttgart). As far as I remember, the paper could be found in the Krautkraemer journal 'Das Echo'.
: Regards
: Uli Mletzko
: NDT group, MPA,
: University of Stuttgart (Germany)
------------ End Original Message ------------

The method desxribed by Pnametrics has the advantage of being certain that the two velocities are measured over the same path - and in the same direction with respect to any anisotropies due to grain structure. The disadvatage for some is the cost of contract straight-beam shear wave transducers and the need to make a specimen with parallel sides. Using angle beam longitudinal and shear waves with different angles is fine for materials with uniform properties all directions. However, a surprising variety of materials have directional properties depending upon how they were manufactured.


    
 
 

Product Spotlight

Conformable wedge transducer

The conformability is obtained with a flexible membrane filled with water between the transducer and
...
the inspected component. The coupling between the membrane and the component requires a small quantity of water or couplant. The conformable wedge combines the acoustic performance of immersion technique with good coupling and low attenuation.
>

CIVA 2017 UT Module

CIVA NDE Simulation Software is the world leader of NDT Simulation. The UT simulation Module incl
...
udes: - "Beam computation": Beam propagation simulation - "Inspection Simulation": Beam interaction with flaws or specimens The user can simulate a whole inspection process (pulse echo, tandem or TOFD) with a wide range of probes (conventional, Phased- arrays or EMAT), components, and flaws.
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window